:root {
--accent-color: #000000;
--bg-color: #1a1a2e;
--text-color: #ffffff;
--input-bg: #2d2d4a;
--msg-user-bg: #000000;
--msg-ai-bg: #2d2d4a;
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'SimHei', '黑体', sans-serif; }
body {
height: 100vh;
width: 100vw;
background: var(--bg-color); /* 默认底色 */
background-size: cover;
background-position: center;
transition: 0.5s;
overflow: hidden;
color: var(--text-color);
}

/* 聊天主界面 */
#chat-container {
width: 100%;
height: 100%;
display: flex;
flex-direction: column;
}

/* 聊天头部 */
.chat-header {
padding: 15px 20px;
display: flex;
align-items: center;
gap: 15px;
background: rgba(0, 0, 0, 0.8);
border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.avatar-img {
width: 40px;
height: 40px;
border-radius: 50%;
object-fit: cover;
border: 2px solid var(--accent-color);
background: #eee;
}

.btn-settings {
margin-left: auto;
background: none;
border: none;
color: var(--text-color);
font-size: 20px;
cursor: pointer;
padding: 5px;
border-radius: 50%;
}

/* 聊天窗口 */
#chat-window {
flex: 1;
padding: 20px;
overflow-y: auto;
display: flex;
flex-direction: column;
gap: 15px;
}

/* 气泡样式 */
.msg {
max-width: 80%;
padding: 12px 16px;
border-radius: 18px;
line-height: 1.6;
font-size: 16px;
position: relative;
color: var(--text-color);
font-weight: 500;
}

.msg-user {
align-self: flex-end;
background: var(--msg-user-bg);
border-bottom-right-radius: 2px;
}

.msg-ai {
align-self: flex-start;
background: var(--msg-ai-bg);
border-bottom-left-radius: 2px;
}

/* 动作括号样式 */
.action-text {
font-style: italic;
opacity: 0.85;
color: #ffeb3b;
}

/* 输入区域 */
.input-area {
padding: 15px 20px;
display: flex;
gap: 10px;
background: rgba(0, 0, 0, 0.8);
border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.input-area input {
flex: 1;
background: var(--input-bg);
border: 1px solid rgba(255, 255, 255, 0.2);
padding: 12px 16px;
border-radius: 20px;
color: var(--text-color);
font-size: 16px;
outline: none;
}

.btn-send {
background: var(--accent-color);
border: none;
color: var(--text-color);
padding: 0 20px;
border-radius: 20px;
cursor: pointer;
transition: 0.3s;
font-weight: 500;
}

/* 配置中心界面 */
#settings-container {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background: var(--bg-color);
z-index: 1000;
display: flex;
flex-direction: column;
}

.settings-header {
padding: 15px 20px;
display: flex;
align-items: center;
justify-content: space-between;
background: rgba(0, 0, 0, 0.8);
border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.settings-header h3 {
font-size: 18px;
margin: 0;
}

.btn-back {
background: none;
border: none;
color: var(--text-color);
font-size: 16px;
cursor: pointer;
padding: 5px 10px;
border-radius: 5px;
}

.settings-content {
padding: 20px;
flex: 1;
overflow-y: auto;
display: flex;
flex-direction: column;
gap: 15px;
}

label {
font-size: 14px;
opacity: 0.8;
margin-top: 5px;
}

input, textarea, select {
width: 100%;
background: var(--input-bg);
border: 1px solid rgba(255, 255, 255, 0.2);
padding: 12px;
border-radius: 8px;
color: var(--text-color);
font-size: 14px;
outline: none;
}

textarea {
resize: vertical;
}

/* 文件上传样式 */
.file-input-group {
display: flex;
flex-direction: column;
gap: 5px;
}

input[type="file"] {
font-size: 12px;
padding: 8px;
}

.btn-clear {
background: rgba(255, 50, 50, 0.3);
border: 1px solid rgba(255, 50, 50, 0.5);
margin-top: 10px;
cursor: pointer;
padding: 10px;
border-radius: 8px;
color: #ff9999;
font-weight: 500;
}

.btn-developer {
background: rgba(0, 150, 255, 0.3);
border: 1px solid rgba(0, 150, 255, 0.5);
margin-top: 10px;
cursor: pointer;
padding: 10px;
border-radius: 8px;
color: #99ccff;
font-weight: 500;
}

.btn-music {
background: rgba(100, 255, 100, 0.3);
border: 1px solid rgba(100, 255, 100, 0.5);
margin-top: 10px;
cursor: pointer;
padding: 10px;
border-radius: 8px;
color: #99ff99;
font-weight: 500;
}

.music-controls {
margin-top: 5px;
}

/* 隐藏类 */
.hidden {
display: none !important;
}

/* 滚动条样式 */
::-webkit-scrollbar {
width: 6px;
}

::-webkit-scrollbar-track {
background: rgba(0, 0, 0, 0.3);
}

::-webkit-scrollbar-thumb {
background: rgba(255, 255, 255, 0.3);
border-radius: 3px;
}

/* 移动端优化 */
@media (max-width: 768px) {
.chat-header {
padding: 12px 15px;
}

.avatar-img {
width: 35px;
height: 35px;
}

#chat-window {
padding: 15px;
gap: 12px;
}

.msg {
font-size: 14px;
padding: 10px 14px;
}

.input-area {
padding: 12px 15px;
}

.input-area input {
padding: 10px 14px;
font-size: 14px;
}

.settings-content {
padding: 15px;
}

input, textarea, select {
padding: 10px;
font-size: 14px;
}
}

@media (max-width: 480px) {
.msg {
max-width: 85%;
}

.input-area input {
font-size: 13px;
}

.btn-send {
padding: 0 16px;
font-size: 13px;
}
}